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knowledgeispower

Member

Registered: 2018-11-27

Posts: 4

Create RAID 5 and RAID 1 on LVM

Hi.

I try to configure RAID, but it does not work.

Layout: https://i.imgur.com/cBy5eWk.png

First I created RAID 5 on my disk1, disk2 and disk3.

mdadm --create /dev/md0 --level=5 --raid-devices=3 /dev/mapper/all-disk1 /dev/mapper/all-disk2 /dev/mapper/all-disk3

And then I tried to create RAID 1 on my disk1, disk2, disk3 and boot.

mdadm --create /dev/md1 --level=5 --raid-devices=4 /dev/mapper/all-disk1 /dev/mapper/all-disk2 /dev/mapper/all-disk3 /dev/mapper/all-boot

But I got this error:

device /dev/mapper/all-disk1 not suitable for any style of array
device /dev/mapper/all-disk2 not suitable for any style of array
device /dev/mapper/all-disk3 not suitable for any style of array

What's my problem?

EDIT:
Will be better creating one partition for /boot to each physical disk?

Last edited by knowledgeispower (2018-11-27 23:45:10)